Patrick Ptomey is an atheist and a pro-life activist. H/T Brian Kemper. 
Excerpt:
“Personally, my pro-life beliefs belong to the discoveries in science. While I am sympathetic to women’s rights and would even consider myself a Feminist as would any man who believes in gender equality, the right to life outweighs our personal discomforts. I will hesitantly concede that had I been born 10 years earlier I most likely would have considered myself pro-choice based upon the absence of scientific evidence within the pro-life movement at the time. More so, if science had proven that life began at birth I would have had no foundation for an anti-abortion belief. Thankfully for the pro-life movement, science has reemphasized the movement’s argument that abortion takes the life of an unborn child. Today, the movement has realized that science is much more likely to reach an audience which is increasingly looking for demonstrable evidence from which to base their position on social issues; not just the church’s suggestion.”
A Deacon's Wife 